It's an FPS RPG, which draws heavily on Tribes.
Free to play, and not pay to win (There are a few minor cosmetics you can buy. You can also pay instead of playing, but there's a cheaper way to not play.)

I like it, and have been playing a lot recently. It feels a lot like UT2k4 to me, and would probably feel like tribes if I had ever been halfway good at tribes. It's grindy, but the grind feels like playing CTF or assault. Whether that's good or not will likely depend on you._________________

Vebyast wrote:

Here's a fun target for Major Creation: hydrazine. One casting every six seconds at CL9 gives you a bit more than 40 liters per second, which is comparable to the flow rates of some small, but serious, rocket engines. Six items running at full blast through a well-engineered engine will put you, and something like 50 tons of cargo, into space. Alternatively, if you thrust sideways, you will briefly be a fireball screaming across the sky at mach 14 before you melt from atmospheric friction.